Hose.



P. D. VOORHEES.

I HOSE.

APPLICATION FILED MAY1l,1911.

Patented Feb. 4, 1913.

2 pi vwe Whoa FRANK D. VOORHEES, OF MONTCLAIR, NEW ERSEY.

HOSE.

Specification of Letters Patent.

Patented Feb. 4,1913.

Application filed May 11, 1911. Serial No. 626,435.

To all whom it may concern;

Be it known that I, FRANK D. Voonmms, i a citizen of the United States,residing in, the town of Montclair, county of Essex, and State of NewJersey, have invented certain" new and useful Improvements in Hose, ofwhich the following is a full, clear, and exact specification.

This invention relates to hose, and particularly to hose for use insuction and vacuum apparatus.

The improvement is particularly directed to an improved method ofmanufacturing hose and to a structure which will be self sustainingagainst internal vacuum or suction.

In the drawing accompanying and forming a part of this specification asect-ion of hose embodying one practicable carrying out of my inventionis illustrated, the section of hose being shown in elevation and partlyin longitudinal section.

The body portion of the hose is shown sustained by a helically disposedwire. The coalescence of the body portion and the complete adhesion ofthe strata of the structure are essential to its air-tightness andnon-collapsibility.

In the form of hose herein illustrated there is shown a lining 1 ofrubber, over which, or rat-her outside of which is a layer of fabric 2.The rubber 1, and fabric 2, together, or either of these singly, may beregarded as the lining of the hose. The body portion of the structurecomprises a continuous, homogeneous mass, referably of rubber in whichthere is ernbo ied a supporting frame, in the present illustration ahelically disposed wire.

The preferable mode of laying'up the hose will be by applying a ply ofrubber,, the lining 1, to the mandrel. Outside of this will be appliedthe fabricQ. Aply of rubber, comprising the portion 3, will be laid overthe fabric. The wire 4 will then be wound with sufficient force topartially embed itself within the rubber 3, then a ply of rubber 5 willbe imposed upon the wire 4, fabric 6 will then be laid over the bondingor filling material composed of plies 3 and 5 and draw the'sheets ofwhich such plies are composed into more or less close relationship withthe wire and with each other. Power or pressure will then be applied formashing the sheets or plies 3 and 5 together and into close adhesionwith E the entire surface of the wire, and for causing the fabric 6 toadhere to the filler, in which the wire is invested, and to the liningof the hose irrespective of irregularities in the thickness of thefiller. Power or pressure is preferably so applied in the form of ahelically disposed yarn 7, wound over the fabric 6 and having itsconvolutions disposed between the convolut-ions of the wire. The yarnwill force the filler, the rubber body portion in the presentillustration, in a radial direction inwardly and also laterally forcausing the rubber to surround and adhere to the wire and for causingthe rubber of the entire body portion to become one united mass which itwill do under the influences of the vulcanizing heat and pressure towhich the structure will be subjected while being cured. The applicationof the wire will mash the rubber of ply 3, and cause portions of it toenter the interstices of the fabric 2. The application of the binder '7,will mash the rubber of plies 5 and 8 into the interstices of thefabrics 6 and 2 respectively. The rubber inwardly of the binder will inmost instances be denser Ehan the other portions of the rubber in theose. ing rubber, together with the other parts of the structure, will beheld in position during the curing of the structure, and after thecuring the binder will assist in maintaining the parts in their properrelations. It will thus be seen that the binder 7 establishes anadhesive relation between the filler and the lining and also establishesan adhesive relation between the fabric-covering 6 and the lining, andafter the establishment of such adhesive relation, assists in themaintenance thereof.

In many situations it is desirable to have the outside of the hosesubstantially cylindrical and covered with a sanitary, wearresisting,impervious material. Rubber is a good material for such use. It is mucheasier to. leave the yarn in its cavity than it is to remove it and fill"the cavity with other materials. If it is desired to leave the yarn inposition to thicken the structure, to withstand wear, andalso to resistthe leakage of air, a ply of rubber 8 may be imposed upon theconvolutions of the yarn and upon the exposed portions of the fabric 6.An additional ply of fabric 9 may be imposed upon the rubber 8, in whichcase this rubber ply may be applied in the form The material of thebonding or fill-- of'rubber cement, and a final ply of rubber 10 may beapplied to this last mentioned fabric forming the coating of thestructure.

The usual removable fabric wrapping will be applied to the built u priorto its vulcanization and t 1e appllcationof this fabric together withthe pressure and heat employed in vulcanization will cause the variousirregularities formed bythe yarn to be eliminated or blended at theouter surface of the hose. This structure is cleanly in that it has nodeep recesses or exposed fabric or yarn to collect im ur1- ties. Itsregular or smooth surface wil not mar furniture, floors or floorcoverings and will itself be wear resisting. It will be seen that byeffecting a complete adhesion of the body portion to theentire wiresurface and by causing this body portion which embeds the wires tocoalesce into one continuous mass, and the various strata to closelyadhere one with the other, a structure will be provided which willresist the tendency existing in present forms of vacuum hose to breakdown in places by the lining portions cleaving from the supportingstructure.

We have in this present structure a body portion supported by a rigidframework, that is, rigid so far as radial movement is concerned, andupon this is a protecting and reinforcing structure, the yarn,reinforcing,

the body portion and compensating for irregularities in the body portionand the frame work, and outside of this is material for holding thereinforcing yarn in position, and for covering it up so that it not onlywill be protected from wear but from contaminating influences.

Cotton yarn is a strong, light, and eficient material to employ in thestructure, but other material may be used for being forced between theconvolutions of the supporting frame.

Changes in details of manufacture and selection of materials may be madewithin the scope ofthe claims without departing from the spirit of theinvention.

Having thus described my invention, what I claim and desire to secure byLetters Patent is: v Y

1. The improvement in the art of manufacturing hose, which consists inplacing a ply of rubber upon a mandrel, then placmg a ply of fabric overthe rubber, then placing a ply of rubber upon this fabric, then.

tightly winding upon such rubber a wire with widely spaced-apartconvolutions, im-

posing a ply of rubber upon the wire and structure noeaioe connectionwith the wire and then heattreating the rubber for effecting coalescenceof the plies investing the wire.

.2. A vacuum hose comprising a lining, a helical wire disposed outwardlyof the lining, a cover disposed outwardly of the wire, bonding materialbetween the lining and cover, a helical binder upon the cover having itsconvolutions disposed between the convolutions of the wire.

V. 3. A hose comprising a lining embodying a fabric, a frame, a fillerinvesting the frame and mashed into adhesive relation with the fabric ofthe lining, and means for holding the filler in adhesive relation to thelining. 4. A vacuum hose comprising an impervious lining, a fabriccover, a framework between the cover and lining, filling materialinvesting the framework and disposed between thefabric andlining andmashed into adhesive relation with the lining and cover, and a binderfor maintaining adhesion between the parts of the structure.

5. A vacuum hose comprising a lining, a helically-disposed wire locatedoutwardly of the\ lining, fabric located outwardly of the wire, bondingmaterial between the lining and fabric, a helical binder on the fabrichaving its convolutions located between the convolutions of the wire.

6 A vacuum hose comprising a lining, a hehcall'y-disposed wire locatedoutwardly of the lining, fabric located outwardly of the-wire, bondingmaterial between the lining and fabric, a helical binder on the fabr1chaving its convolutions located between the convolutions of the wire,and an impervious cover over the binder and fabric.

7 A vacuum hose comprising a lining, a helically-disposed wire locatedoutwardly of the lining, fabric located outwardly of the wire, bondingmaterial between the lining and fabric, a helical binder on the fabrichaving its convolutions located between the convolutions of the wire, animpervious cover over the binder and fabric, and an impervious levelingbody enveloping the binder and fabric.

A vacuum hose comprising a rubber l ning, fabric over the lining,fillin' mate rial over such fabric, a helicallyisposed wire invested inthe filler, fabric over the filler, a helically-disposed yarn over thelast-mentioned fabric for binding the two A vacuum hose comprisin arubber l1 n1ng, fabric over the lining, filing material over suchfabric, a helically-disposed wire invested in the filler, fabric overthe filler, a helically-disposed yarn over the lastmentioned fabric forbinding the two said fabrics together and upon the filler, a coating ofrubber for the second fabric and the yarn filling the spacestherebetween, a third fabric over such coating, and a rubbersurinvesting rubber, a binder helically wound over the said fabricbetween the convolutions of the wire frame, a second fabric, cementbetween said second and first-mentioned fabrics and the binder, and arubber coating outside said second fabric.

11. In a hose, the combination with a rubber lining, a fabric backingfor. such rubber lining, filling material outwardl of said fabric, ahelically-Wound wire em edded in said fillin a fabric covering outwardlyof said lling, a helically-wound binder upon said fabric and having itsconvolutions disposed between the convolutions of the wire, a layer ofcement disposed upon said last-mentioned fabric and the binder, and acovering of rubber forming the outer surface of the hose.

12. In a hose, the combination with a rubber lining, a fabric backingfor such rubber lining, filling material outwardly of said fabric, ahelically-wound wire embedded in said filling, a fabric coveringoutwardly of said filling, a helically-wound binder upon said fabric andhaving its con volutions disposed between the convolutions of the wire,and a layer of rubber outwardly of said fabric and thevbinder. v

13. In a hose, the combination with a helically disposed wireframe-work, of rubber investing said frame-work, fabric overlying saidinvesting rubber, a helically-disposed binder upon said fabric, and arubber coating disposed outwardly of said fabric and binder.'

In witness whereof I have hereunto set my hand in the wltnesses.

FRANK D. VOORHEESQ presence of two subscribing

